Reviewers know that Port Arthur is akin to Australia's 9/11. Witnesses to 9/11, if their evidence varied too much from the official narrative, and especially if they had seminal evidence, such as Australian Gerard Holmgren stumbling upon the US aviation flight database not listing two flights (later doctored to list the flights), tended to suffer fatal misfortunes of various sorts. Port Arthur is just as dark as 9/11, a crime as dastardly and callous as those perpetrated by fascist regimes against their own people, so readers are too timid to leave a review.